杨树幼苗器官蒸腾生态边界层结构的研究

应用生态学报 ›› 1995, Vol. 6 ›› Issue (1): 14-16.

杨树幼苗器官蒸腾生态边界层结构的研究

郭继善

南京林业大学, 南京 210037

收稿日期:1992-07-14 修回日期:1993-09-09 出版日期:1995-01-25 发布日期:1995-01-25
基金资助:
国家自然科学基金

Structure of transpiration ecoboundary layer of organs of poplar seedlings

Guo Jishan

Nanjing Forestry University, Nanjing 210037

Received:1992-07-14 Revised:1993-09-09 Online:1995-01-25 Published:1995-01-25

摘要/Abstract

摘要： 利用氚水(³H₂O)作为示踪剂,测定杨树(69杨)叶、茎及整株等器官的蒸腾生态边界层厚度并探索植物的蒸腾与环境的关系。结果表明杨树嫩叶的叶面蒸腾率大于叶背蒸腾率;叶缘区蒸腾率大于中脉间蒸腾率。幼苗单叶器官的蒸腾生态边界层厚度为5-6cm.全株苗木的蒸腾边界层厚度为24cm.

关键词: 杨树苗, 蒸腾率, 生态边界层

Abstract: The thickness of transpiration ecoboundary layer of leaves, stems and whole plants ofpoplar seedlings is measured by means of ³H₂O tracing techniques, and the relationship between transpiration of poplar seedling and environment is studied.The results show thatthe transpiration rate of upper leaf surface is larger than that of lower surface, and that ofleaf margins is larger than that of the midribs.The transpiration ecoboundary thicknessof leaf is 5-6cm, while that of whole seedling is 24cm.

Key words: Poplar seedling, Transpiration rate, Ecoboundary layer

郭继善. 杨树幼苗器官蒸腾生态边界层结构的研究[J]. 应用生态学报, 1995, 6(1): 14-16.

Guo Jishan. Structure of transpiration ecoboundary layer of organs of poplar seedlings[J]. Chinese Journal of Applied Ecology, 1995, 6(1): 14-16.